说明：  用MATLAB GUI工具搭建的电机上位机程序。包括串口功能模块，转速在线画图模块和位置在线画图模块，非常适用于电机调速过程的调试和演示工作。
(The host motor control program using MATLAB GUI tools is built.Including the serial port function module, speed online plotting module and position online plotting module which is applicable for debugging and demonstration during the motor control project.)